Matt Lucas and David Williams have brought their many "Little Britain" characters to America, and their new Americanized edition of the show, Little Britain USA, debuts Sunday, Sept. 28, on HBO. They’ll be making the promotional rounds all week, including TV stops on Leno tonight and Conan on Wednesday (they’ll also be meeting the masses at 8 p.m. Wednesday in New York City at the Apple Store in SoHo).

You can watch several teaser videos on the HBO site here. And here, the fellas talk about their new project: